Lock set



H. BLYE.

LOCK SET',

APPLICATION FILED IAN. I3, I9I9 1,399,538. Patented Dee. 6, 1921.

lf /1 10 /3 (I l f2 i i LUCK SET. 1

isaaaae.

To all whom t may concern: l

l3e it known that l, Hiinono Barn, a

`citizen of the United `States of America,

residing at Grrand Rapids., in the county of Kent and State of Michigan,` have invented certain new and useful improvements in lioclr Sets; andll do hereby declare the following to be a full, clear, and enactl description of the" invention, such as will enable others slrilled in the art to which it appertains to make and use the saine.

rlFhis invention relates to a lock set adapt-` ed particularly foruse on swinging doors either separately or in conjunction Awith my invention entitled Latch set, for which lA in the door to receive the same, skilled` wood workers being required to properly do the work and a much longer time being taken than with the construction of my invention with `which `one hole need be bored with an y companying drawing,

auger orjbit for the loclr set` and another for the latch set, the same receiving the entire loch and latch installation. ll further object of the invention is to produce a very simple and compact construction, manu- `factured at very low cost, one in which the` `parts making up the device may be readily assembled or disassembledto lreplace or rey pair any part which may become broken or otherwise ont 'of working order, and one `in which a relatively long throw of the lock'-` ing bolt may be had in avery small cylindrical housing` which is necessary for the device if itisto be received between the front and rear sides of a door and housed completely therebetween. All of these objects andpurposes togetherwith novel. constructions `and e arrangements of parts to `effect the same, as well asV many others not at this time specifically set forth, will appear fully and in `detail as understanding of the invention is had from the following description taken in connection with the acin which,

Figure l is a partial. plan and sectional Specification of Letters Patent. i

.application tiled January 13, 1919. :serial lilo.dit/(MEMS.A

view ofthe lock set applied to a door, the door and key guide being in horizontal section andtlie loch set in plan.

Fig. 2 is anenlarged side elevation of the loch set, one of the housing members being removed to showthe interior mechanism in thepositioii it occupies when the bolt is retracted. i

Fig. B is an enlarged plan of the latch bolt and connected operating mechanism.

Fig; 'd is an enlarged vertical 'section taken longitudinally at the inner end of the bolt. v

Fig.` 5 is a fragmentary enlarged side elevation of the inner end of the bolt and operating mechanism therefor, the same occupying an intermediate position between e tbhe extended and retracted positions of the Fig. `6 is a rear elevation of the key guide escutchecn.

-Fig.f7 is an elevation of the end of theV key used to operate the lock. Y

Like reference characters refer to like parts in the different views of the drawing.

The lock set is adapted to be applied at the free verticaledge of a door l, in which a cylindrical opening 2 is bored to receive the set. rllie lock set is also of cylindrical form, preferably, including in its construction two semifcylindrical housing members 3 and 4 which, when placed together, form a cylinder in which the loclr set mechanism is housed. Fach member 3 and t is provided at each end with a short pin 5 to pass into bayonet slots 6 cut in opposite sides of arear cap 7 and a front sleeve 8, the latter being permanently secured to a face plate D9 which is adapted to lie against and which, preferably, is set in the vertical edge of the door. The housing thus constructed is substantially the same as that for the latch set differing only in that the opening in the plate 9 to pass the lock bolt is of different shape and in that each of the members 3 and d are pressed inwardly as indicated at l() at a point between their ends.

At such inwardly pressed portions l0, each housing member 3 and 4lis formed with an opening. to receive the ends 11 of a rotatably mounted lock bolt operating member,` the middle part 12 of which is of smaller diameter and between which and the ends l1 collars 13 of larger diameter are positioned as shown in Fig. 8. Said operating member is slotted at diametrically opposed points as shown at 14 so that the same may v be engaged by a key 1 5 having two tangs 16 V,two upstanding spaced apart ears 19 be- 2OY tween which downwardly extending ears 20 at the rear end of a connecting link 21 pass, a pivot pin22 passing through the ears and pivotally connecting the link 'andlock bolt. At its front end link 21 has pivotal c onnection with thearm` 17, a pivot pin 23 being used. A spring 241 is coiled around pin 22, .its free arms engaging with-the ends of link 21j and the extension 18a, the normal tendency of which is to `force the front end of link 21 and the end of the arm 17 toward the extension 18VaL as will be obvious.

The rotation of the rotatably mounted'op- "eratedmember by the key causes the arm 17 l member is about half completed to move from the position it occupies in Figs. 2 and 3 to the position indicated in Fig. 1., When the arm turns from rear to kfront position the link 21 moves with' it,

causinga corresponding movement of the lock bolt'whereby it is moved from its retracted position in which it is entirely housed within the housing to extended positionV as shown in Fig. 1, the'bolt enteringany suit j able opening in the adjacent door casing and locking the door againstmovement. In Fig. 5 the position of the parts is shown when the rotative movement of Ythe operating and the lock bolt has been started toward its extended or projected position. The action is easy, the bolt being very Aquickly and positively operated. When the bolt is once fully projected it is impossiblerto force Ythe same' back by pressure against the end of the bolt as the vline Vof force thus applied passes directly through or above the axis of pivot 23, causing, itanything, amore secure retention ot the projected position of the b olt. The spring 2a helps to keep the bolt in place against any accidental rotative movement of the operating member which might occur if no force was present to stop such rotation.

The throw of the bolt is large compared to the limited space in which the mechanism must work, in fact fully as large as in any of the locksets used. The mechanism is simple and compact and made of parts all of which with the exception of the rotating operating member, may be made entirely from sheet metal, and this part is easily made in quantities at low cost as a die casting. rFhis member may be varied in many respects so far as the slots lilare concerned to provide many different key changes. For instance the slots may be made of greater or less depth, or may be entirely dispensed with and some other form of key engaging recess provided in the ends oit the operating member for the different key changes which should be included in any practical lock. All of these features make the lock one of practical value 'and particularly as, in addition. the installation is done in such an easy manner, requiring merely that a hole of a size to receive the cap 7 andsleeve S shall be bored in the edge of the door deep enough that the housing can be fully inserted.

'Of course and opening must be provided for the insertion of the key for operation of the lockand it is desirable that this opening becovered and that a suitable guide for the key provided. I have provided both of these in a combined covering escutcheon plate and key guide rotatably mounted thereon. The escutcheon plate 25 may be of any'suitable design, preferably, having a raised portion in which a central opening 26 is cut, said opening being made in a depressed central part of the plate. The key guide 27 is formed from thin sheet metal into rectangular form for ready passage of the key and from the sides of said key guide two tangs 28 are cut and turned to bear against the inner side of the plate 25 adjacent the edges of the opening 26. Likewise the outer end of the key guide has tan'gs 29 turned to lie against the outer face of plate 25, said tangs 29 being, preferably, rounded so as to cover the opening 26. This construction permanently attaches the key guide to the plate 25 but permits the same to rotate with the key when it is connected with the operating member of the lock set.

While the plate 25 is shown attached at one side only of the door, it is obvious that it may be duplicated for the opposite side of the door if it is desired to operate the lock by a key from both sides. In this construction, I have shown an escutcheon plate complete for the lock set, but in practice, when the lock set is used in conjunction with the latch set it may be advisable to use one escutcheon on each side of the door for both the lock and latch sets, this being a matter of preference and not in any way affecting the merits of the two inventions. For the purpose of obtaining the greatest throw of the lock bolt and as long an arm 17 as possible to get such throw, I prefer to out the adjacent edges of the housing members 3 and 4 at their upper sides above the arm as indicated at 30, making a slot in the completed housing which gives more room for the operation of the mechanism.

The construction described is a complement to and is particularly useful in conjunction with my other invention of latch set to which reference has been made. In actual practice it has been demonstrated that an hours time of a skilled mechanic may be saved in installation of the latch and lock set over the usual forms of combined locks and latches for doors in dwelling houses 0r the like, while the cost of manufacture 0i. this invention is below that of other articles designed to serve the same purposes. The

`efficiency and durability of the construction is obvious.

I claim:

In a device of the character described, an

provided with key receiving recesses in each end thereof rotatably mounted transversely of and within the housing, a locking bolt formed of sheet metal located lengthwise of the housing and extending at its rear end under the operating member and formed with two upstanding ears at its rear end, an arm projecting from the operating member, a link formed into substantially channel form from sheet metal pivotally connected at itsfront end to the arm and at its rear end passing downwardly between the ears of the bolt, a pivot connecting the rear end of the link and said ears, and spring means disposed between the link and rear end of the bolt tending to force the front end of the link toward the bolt, substantially as described.

In testimony whereof I aiix my signature.

HAROLD BLYE. 

